Watchmaker&#39;s tool.



PATENTED FEB. 7, 1905.

C. D. HILLABOLD.

WATGHMAKERS TOOL.

APPLICATION FILED MAY 25. 1904.

wihwowa Patented February '7, 1905.

PATENT UEEIQE.

CHARLES D. HILLABOLD, OF CANTON, KANSAS.

WATCHMAKERS TOOL.

SPECIFICATION forming part of Letters Patent No. 781,723, dated February '7, 1905.

Application filed May 25, 1904. Serial 110,209,695.

To (til whom it may concern:

Be it known that I, CuAnLEs D. HILLAnoLD, a citizen of the United States, residing at Canton, in the county of McPherson and State of Kansas, have invented new and useful 1mn-ovements in Watchmakers Tools, of which the following is a specification.

This invention relates to watchmakers tools; and its object is to facilitate the examination and adjustment of the action of watch-escapements of the detached-lever type.

The invention consists of a plate having an arm pivoted thereto, a slide being mounted on the arm and adjustable lengthwise of the same and the plate havingslots or openings to permit the arbor of the escape-wheel or of the roller to be properly located with reference to the arm. The pallet-lever is mounted with its pivot concentric with the pivot of the arm, and the slide on the arm is engaged with the fork of the lever. By moving the arm back and forth over a graduated scale the action of the pallets with reference to the escape-wheel can be accurately observed and any irregularitycorrected. By another operation the action of the roller can be similarly inspected.

In the accompanying drawings,Figure 1 is a plan view of the tool, showing the escapewheel and lever in dotted lines. Fig. 2 is an elevation of a portion of a depthing-toohshm ing my invention applied thereto. Fig. 3 is plan view of the tool as used in adjusting the roller action. 4: is an elevation, partly in section, of a screw-threaded rod used in connection with the plate. Fig. 5 is a top plan view of the nut with which said rod meshes. Fig. 6 is a view of a pallet-lever on an enlarged scale.

The plate 1, which forms the body of my improved watchmakers tool, has at a convenient point a nut 2 firmly fixed in an aperture in the plate and preferably split, as shown in Fig. 5, to give a better grip on a screwthreaded rod 3, which will be described hereinafter. An arm 4: is pivotally mounted on the shank of this nut just under the plate 1. Its outer end projects beyond the edge 5 of the plate, this portion of which is a sector of a circle concentric with the axis of the nut and is provided with graduations 6, running both ways from a central zero-mark. Means are provided for clamping the arm at any point along the sector, preferably a flat linger 7, loosely attached to the outer end of the arm and having a beveled edge which can be drawn down upon the bevelled edge of the sector by means of a screw 8, as clearly shown in Fig. 2. The linger has an index-mark 9 to cooperate with the graduations on the sector.

The arm e is slotted longitudinally to receive a slide 10, which can be clamped at any point along the slot by means of a screw 11 and washer 12. From the upper surface of the slide rise two pins in line with the longitudinal axis of the arm. ()ne of these pins, 13, has a beveled edge presented toward the pivot of the arm. The other pin, lei, has a groove facing in the opposite direction from the edge of the pin 1?). The slideaud its pins extend up through a scctm-shaped opening 15 in the plate 1, which permits the arm to be swung to and fro, its range of movement being limited by the slide striking the edges of said opening. The plate also has three slots running radially from the pivot of the arm. One of these slots, 16, is in line with the zero-mark of the graduated scale 6. The other two slots, 17 and 18, are on opposite sides of the pivot of the arm and at right angles with the slot 16.

This tool is used in connection with a depthing-tool, and the operations of adjusting the pallets of a lever and correcting the action of a roller will be described separately.

To examine the pallet action of a straightline lever-escapement, the rod 2, is placed in the lower right-hand jaw 1/ of the depthingtool and isthen screwed through the nntl until the upper countersunk end of said rod is a little above the upper surface of the plate. Another rod, 19, is placed in the lower left hand jaw of the depthing-tool with its upper end projecting slightly above the plate through the slot 16. The upper end of this rod is countersunk. Similar countersunk rods 20 20 are placed in the upper jaws c of the depthing-tool, and these jaws are adjusted to stand exactly the same distance apart as the pivot-holes for the escape-wheel and lever are in the plate of the watch. The escape-wheel 21 is now placed between the left-hand rods -the rod 3 in the reverse direction.

19 and 20, and the lever 22 is placed between be out of the way. Now by rotating the roller the rods 3 and 20, as shown in Figs. 1 and 2. l the pointer will swing to and fro over the scale The slide is moved until the edge of the pin 13 engages in the fork of the lever. The arm 4 is now moved to the right until the lefthand pallet just clears the tooth of the escape- T Theindex-mark 9 will show the numclears the tooth of the wheel the index-mark will show how far the arm has moved in that direction from the Zero of the scale. If these distances are not the same, the pallets are not properly set, because the beat of the lever should be exactly the same on both sides of the center line. To adjust the pallets, the arm is set at live degrees, and the rod 3 is turned in the jaw of the depthing-tool so that the nut 52 will ride upward on its screw-threaded upper end, and thus lift the plate until it comes in contact with the lower side of the pallets. The flame of a spirit-lamp is then applied to the end of the extension 23 of the plate until the plate becomes hot enough to soften the shellac by which the pallets are secured to the lever. They may now be moved in or out until the tooth will just pass the opposite pallet, and likewise with the other pallet. The amount of lock on the pallets should be one and a half degrees. This can be measured by the distance the arm has to be moved to allow the locking-corner of the tooth to leave the locking-corner of the pallet. \V hen the pallets are properly set, the shellac is allowed to cool, and the plate is then lowered by turning To adjust a right-angle escapement, the escapement-wheel is located over one of the slots 17 or 18; otherwise the operation is the same as has just been described.

When both pallets are properly set, the workman notes the number of degrees the arm passes over in allowing the escape-wheel teeth to pass and uses this number to determine the adjustment of the fork and roller action. This operation is shown in Fig. 3. The depthingtool is set to correspond with the pivot-holes of the balance and lever, and the rod 3 is placed in the lower left-hand jaw D of the depthing-tool. The rod 19 is placed in the right-hand lower jaw a and projects through the slot 17. The pallet-lever is placed in the left-hand centers with the guard-pin down. The roller is taken off the balance-staff and placed on a staff provided for this purpose with the ruby-pin up. This staff is then placed between the right-hand centers of the depthing-tool with the ruby-pin in the fork of the lever. A light pointer 24 is now fastened to the staff of the lever, preferably by splitting the end of the pointer and forcing it upon the stafi. The tip of the pointer lies over the scale on the sector part of the plate, the arm 4 being pushed to one side, as shown, so as to and will show how many degrees of angular movement the lever has. If it is the same as was shown by the action of the lever and escape-wheel, it is correct. If too great, the lever is too long or the ruby-pin is set too far from the staff; if too little, vice versa.

The grooved pin 14 on the slide is intended to be used when adjusting a double-roller escapement. have a guard-point which extends beyond the fork, so that the pin 13 could not enter it; but by loosening the screw 11 the slide can be re versed, so that the guard-point can be received in the grooved pin.

Having thus described my invention, what I claim is 1. A watchmakers tool comprising means for holding an escape-Wheel, means for holding a pallet-lever in operative relation to said wheel, and means for vibrating said lever.

2. A watchmakers tool comprising means for holding an escape-wheel, means for holding a pallet-lever in operative relation to said wheel, means for vibrating said lever, and means for indicating the amount of such vibrations.

3. A watchmakers tool having a graduated scale, means for holding a pallet-lever, and means for indicating on said scale the angular movement of said lever with reference to said scale.

4:. In a watchmakers tool, a plate having an aperture, slots radial to said aperture, and a graduated scale arranged concentric with said aperture, in combination witha member pivoted concentrically to said aperture and adapted to cooperate with the scale.

5. A watchmakers tool comprising a plate having an aperture, and slots radial thereto and provided with a graduated scale concentric with said aperture, a nut in said aperture, and a screw-threaded rod meshing with said nut.

6. A watchmakers tool comprising a plate having an aperture, an arm. pivoted concentric therewith, means for pivoting a palletlever concentric to the aperture, and means carried by said arm for engaging with the pallet-lever.

7. A watchmakefis tool comprising a plate having an aperture, an arm pivoted concentric with said aperture, means for pivoting a pallet-lever concentric to the aperture, and a slide on said arm for engaging the pallet-lever.

8. A watchmakers tool comprising a plate having an aperture, an arm pivoted concentric therewith, a slide movable lengthwise of said arm, and upright pins on said slide.

9. A watchmakers tool comprising a plate having an aperture, an arm pivoted concentric therewith, a slide on said arm, and an upright pin on said slide having a sharp edge.

10. A watchmakers tool comprising a plate having an aperture, an arm pivoted concen- The levers of these escapements tric therewith, a slide on said arm which is both adjustable and reversible, and two upright pins on said slide, one having a sharp edge and the other a groove.

11. The combination with a plate having an aperture provided with a nut, slots radial to said aperture, and a sector-shaped opening, of an arm pivoted concentric With said aperture, and a slide on said arm located in said sector-shaped opening.

l2. The combination with a plate having an aperture provided with a nut, two slots on opposite sides of said aperture and in line with each other, a third slot radial to said aperture and at right angles With the other two slots, and a graduated scale Whose central point is in line with said last-named slot, of an arm pivoted concentric with said aperture and carrying a slide.

13. The combination with a plate having an aperture provided with a nut and provided with a graduated scale concentric with said aperture, of a screw-threaded rod meshing with said nut, an arm pivoted concentric with said aperture and carrying a slide, and a clamp on said arm for adjusting the same.

14. The combination with a plate having a sector-shaped portion provided with a beveled edge, of an arm pivoted concentric with said sector, a linger attached to said arm and hearing on the edge of the sector, and a screw for clamping said linger upon said edge.

In testimon; whereo't'l have signed my name to this specification in the presence of two subscribingwitnesses.

CHARLES I). HlLLABOLD.

Witnesses:

E. Rirrnu, I. (i. \VILsoN. 

